British Airways World Cargo (BAWC) has reported commercial revenue (flown revenue plus fuel surcharges) of £550.3 million (US$790 million) for the full year beginning April 2009. This represents a decrease of 18.2 per cent against the same period last year. Excluding the impact of favourable exchange rate movements, commercial revenues were down 26.1 per cent. Volumes of 4.5 million cargo tonne kilometres (CTKs) for the full year represent a decrease of 2.2 per cent versus the previous 12 months. Cargo capacity for the same period was down 4.2 per cent. Overall yield (commercial revenue per CTK) decreased by 16.4 per cent versus last year, driven by lower levels of fuel surcharge and underlying market conditions.  Excluding the impact of exchange rate movements, yield decreased by 24.5 per cent. The fourth quarter in comparison saw an increase in revenue of 9.2 per cent compared to the same quarter in the prior year. This quarter benefited from an increase in volumes of 5.8 per cent.